I need serious advice

Okay hi, I am 5’ 1” ft (155cm) tall and weigh around 52.7 kg, and 20F. So I joined a gym around 2 months ago and I was very clear from the start that I need to lose fats+weight in few months before college. God damn I spent so much money (200 euros) for personal training and everything and what’s the result? Nothing My fats are still the same (esp the stubborn belly fat) They did say that they’ll help me out with diet and everything and I’ve been following it blindly. And now I see it was all worthless. Nothing changed I have less than two months left now and please help me out guys. I don’t even feel like going to the gym anymore. Is there anything I can seriously do at home (or gym if that’s the only way). I’m planning to follow serious calorie deficit and I can put in more than 2-3 hours into workouts (I’m just home all day). And any workout suggestions?

My goal is 48-49 kg and serious toning of body, and god if I can get rid of my belly at most. Atleast lose few inches

I got to know about strength training and stuff. Worst part, my trainer wouldn’t even tell me about the workouts, like keep in dark wow. Please suggest some apps too if they seriously work. Idm any with subscriptions. YouTube did showed the ads Fitonist so that’s on my list. Then there’s Chloe ting’s core. I would really do it all. It’s just high tide now and I’m pissed pissed.

Pleaseeeeeeee give any tips, whatever you can It’ll be really helpful.